/*
 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
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 *
 *
 *
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 */
package javax.swing.plaf.nimbus;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.swing.*;
import javax.swing.Painter;


final class ComboBoxArrowButtonPainter extends AbstractRegionPainter {

  //package private integers representing the available states that
  //this painter will paint. These are used when creating a new instance
  //of ComboBoxArrowButtonPainter to determine which region/state is being painted
  //by that instance.
  static final int BACKGROUND_DISABLED = 1;
  static final int BACKGROUND_ENABLED = 2;
  static final int BACKGROUND_ENABLED_MOUSEOVER = 3;
  static final int BACKGROUND_ENABLED_PRESSED = 4;
  static final int BACKGROUND_DISABLED_EDITABLE = 5;
  static final int BACKGROUND_ENABLED_EDITABLE = 6;
  static final int BACKGROUND_MOUSEOVER_EDITABLE = 7;
  static final int BACKGROUND_PRESSED_EDITABLE = 8;
  static final int BACKGROUND_SELECTED_EDITABLE = 9;
  static final int FOREGROUND_ENABLED = 10;
  static final int FOREGROUND_MOUSEOVER = 11;
  static final int FOREGROUND_DISABLED = 12;
  static final int FOREGROUND_PRESSED = 13;
  static final int FOREGROUND_SELECTED = 14;


  private int state; //refers to one of the static final ints above
  private PaintContext ctx;

  //the following 4 variables are reused during the painting code of the layers
  private Path2D path = new Path2D.Float();
  private Rectangle2D rect = new Rectangle2D.Float(0, 0, 0, 0);
  private RoundRectangle2D roundRect = new RoundRectangle2D.Float(0, 0, 0, 0, 0, 0);
  private Ellipse2D ellipse = new Ellipse2D.Float(0, 0, 0, 0);

  //All Colors used for painting are stored here. Ideally, only those colors being used
  //by a particular instance of ComboBoxArrowButtonPainter would be created. For the moment at least,
  //however, all are created for each instance.
  private Color color1 = decodeColor("nimbusBlueGrey", -0.6111111f, -0.110526316f, -0.74509805f,
      -247);
  private Color color2 = decodeColor("nimbusBase", 0.021348298f, -0.56289876f, 0.2588235f, 0);
  private Color color3 = decodeColor("nimbusBase", 0.010237217f, -0.55799407f, 0.20784312f, 0);
  private Color color4 = new Color(255, 200, 0, 255);
  private Color color5 = decodeColor("nimbusBase", 0.021348298f, -0.59223604f, 0.35294116f, 0);
  private Color color6 = decodeColor("nimbusBase", 0.02391243f, -0.5774183f, 0.32549018f, 0);
  private Color color7 = decodeColor("nimbusBase", 0.021348298f, -0.56722116f, 0.3098039f, 0);
  private Color color8 = decodeColor("nimbusBase", 0.021348298f, -0.567841f, 0.31764704f, 0);
  private Color color9 = decodeColor("nimbusBlueGrey", -0.6111111f, -0.110526316f, -0.74509805f,
      -191);
  private Color color10 = decodeColor("nimbusBase", 5.1498413E-4f, -0.34585923f, -0.007843137f, 0);
  private Color color11 = decodeColor("nimbusBase", 5.1498413E-4f, -0.095173776f, -0.25882354f, 0);
  private Color color12 = decodeColor("nimbusBase", 0.004681647f, -0.6197143f, 0.43137252f, 0);
  private Color color13 = decodeColor("nimbusBase", 0.0023007393f, -0.46825016f, 0.27058822f, 0);
  private Color color14 = decodeColor("nimbusBase", 5.1498413E-4f, -0.43866998f, 0.24705881f, 0);
  private Color color15 = decodeColor("nimbusBase", 5.1498413E-4f, -0.4625541f, 0.35686272f, 0);
  private Color color16 = decodeColor("nimbusBase", 0.0013483167f, -0.1769987f, -0.12156865f, 0);
  private Color color17 = decodeColor("nimbusBase", 0.059279382f, 0.3642857f, -0.43529415f, 0);
  private Color color18 = decodeColor("nimbusBase", 0.004681647f, -0.6198413f, 0.43921566f, 0);
  private Color color19 = decodeColor("nimbusBase", 0.0023007393f, -0.48084703f, 0.33725488f, 0);
  private Color color20 = decodeColor("nimbusBase", 5.1498413E-4f, -0.4555341f, 0.3215686f, 0);
  private Color color21 = decodeColor("nimbusBase", 5.1498413E-4f, -0.4757143f, 0.43137252f, 0);
  private Color color22 = decodeColor("nimbusBase", -0.57865167f, -0.6357143f, -0.54901963f, 0);
  private Color color23 = decodeColor("nimbusBase", -3.528595E-5f, 0.018606722f, -0.23137257f, 0);
  private Color color24 = decodeColor("nimbusBase", -4.2033195E-4f, -0.38050595f, 0.20392156f, 0);
  private Color color25 = decodeColor("nimbusBase", 7.13408E-4f, -0.064285696f, 0.027450979f, 0);
  private Color color26 = decodeColor("nimbusBase", 0.0f, -0.00895375f, 0.007843137f, 0);
  private Color color27 = decodeColor("nimbusBase", 8.9377165E-4f, -0.13853917f, 0.14509803f, 0);
  private Color color28 = decodeColor("nimbusBase", -0.57865167f, -0.6357143f, -0.37254906f, 0);
  private Color color29 = decodeColor("nimbusBase", -0.57865167f, -0.6357143f, -0.5254902f, 0);
  private Color color30 = decodeColor("nimbusBase", 0.027408898f, -0.57391655f, 0.1490196f, 0);
  private Color color31 = decodeColor("nimbusBase", 0.0f, -0.6357143f, 0.45098037f, 0);


  //Array of current component colors, updated in each paint call
  private Object[] componentColors;

  public ComboBoxArrowButtonPainter(PaintContext ctx, int state) {
    super();
    this.state = state;
    this.ctx = ctx;
  }

  @Override
  protected void doPaint(Graphics2D g, JComponent c, int width, int height,
      Object[] extendedCacheKeys) {
    //populate componentColors array with colors calculated in getExtendedCacheKeys call
    componentColors = extendedCacheKeys;
    //generate this entire method. Each state/bg/fg/border combo that has
    //been painted gets its own KEY and paint method.
    switch (state) {
      case BACKGROUND_DISABLED_EDITABLE:
        paintBackgroundDisabledAndEditable(g);
        break;
      case BACKGROUND_ENABLED_EDITABLE:
        paintBackgroundEnabledAndEditable(g);
        break;
      case BACKGROUND_MOUSEOVER_EDITABLE:
        paintBackgroundMouseOverAndEditable(g);
        break;
      case BACKGROUND_PRESSED_EDITABLE:
        paintBackgroundPressedAndEditable(g);
        break;
      case BACKGROUND_SELECTED_EDITABLE:
        paintBackgroundSelectedAndEditable(g);
        break;
      case FOREGROUND_ENABLED:
        paintForegroundEnabled(g);
        break;
      case FOREGROUND_MOUSEOVER:
        paintForegroundMouseOver(g);
        break;
      case FOREGROUND_DISABLED:
        paintForegroundDisabled(g);
        break;
      case FOREGROUND_PRESSED:
        paintForegroundPressed(g);
        break;
      case FOREGROUND_SELECTED:
        paintForegroundSelected(g);
        break;

    }
  }


  @Override
  protected final PaintContext getPaintContext() {
    return ctx;
  }

  private void paintBackgroundDisabledAndEditable(Graphics2D g) {
    path = decodePath1();
    g.setPaint(color1);
    g.fill(path);
    path = decodePath2();
    g.setPaint(decodeGradient1(path));
    g.fill(path);
    path = decodePath3();
    g.setPaint(color4);
    g.fill(path);
    path = decodePath4();
    g.setPaint(decodeGradient2(path));
    g.fill(path);

  }

  private void paintBackgroundEnabledAndEditable(Graphics2D g) {
    path = decodePath1();
    g.setPaint(color9);
    g.fill(path);
    path = decodePath2();
    g.setPaint(decodeGradient3(path));
    g.fill(path);
    path = decodePath3();
    g.setPaint(color4);
    g.fill(path);
    path = decodePath4();
    g.setPaint(decodeGradient4(path));
    g.fill(path);

  }

  private void paintBackgroundMouseOverAndEditable(Graphics2D g) {
    path = decodePath1();
    g.setPaint(color9);
    g.fill(path);
    path = decodePath2();
    g.setPaint(decodeGradient5(path));
    g.fill(path);
    path = decodePath3();
    g.setPaint(color4);
    g.fill(path);
    path = decodePath4();
    g.setPaint(decodeGradient6(path));
    g.fill(path);

  }

  private void paintBackgroundPressedAndEditable(Graphics2D g) {
    path = decodePath1();
    g.setPaint(color9);
    g.fill(path);
    path = decodePath2();
    g.setPaint(decodeGradient7(path));
    g.fill(path);
    path = decodePath3();
    g.setPaint(color4);
    g.fill(path);
    path = decodePath4();
    g.setPaint(decodeGradient8(path));
    g.fill(path);

  }

  private void paintBackgroundSelectedAndEditable(Graphics2D g) {
    path = decodePath1();
    g.setPaint(color9);
    g.fill(path);
    path = decodePath2();
    g.setPaint(decodeGradient7(path));
    g.fill(path);
    path = decodePath3();
    g.setPaint(color4);
    g.fill(path);
    path = decodePath4();
    g.setPaint(decodeGradient8(path));
    g.fill(path);

  }

  private void paintForegroundEnabled(Graphics2D g) {
    path = decodePath5();
    g.setPaint(decodeGradient9(path));
    g.fill(path);

  }

  private void paintForegroundMouseOver(Graphics2D g) {
    path = decodePath6();
    g.setPaint(decodeGradient9(path));
    g.fill(path);

  }

  private void paintForegroundDisabled(Graphics2D g) {
    path = decodePath7();
    g.setPaint(color30);
    g.fill(path);

  }

  private void paintForegroundPressed(Graphics2D g) {
    path = decodePath8();
    g.setPaint(color31);
    g.fill(path);

  }

  private void paintForegroundSelected(Graphics2D g) {
    path = decodePath7();
    g.setPaint(color31);
    g.fill(path);

  }


  private Path2D decodePath1() {
    path.reset();
    path.moveTo(decodeX(0.0f), decodeY(2.0f));
    path.lineTo(decodeX(2.75f), decodeY(2.0f));
    path.lineTo(decodeX(2.75f), decodeY(2.25f));
    path.curveTo(decodeAnchorX(2.75f, 0.0f), decodeAnchorY(2.25f, 4.0f),
        decodeAnchorX(2.125f, 3.0f), decodeAnchorY(2.875f, 0.0f), decodeX(2.125f), decodeY(2.875f));
    path.lineTo(decodeX(0.0f), decodeY(2.875f));
    path.lineTo(decodeX(0.0f), decodeY(2.0f));
    path.closePath();
    return path;
  }

  private Path2D decodePath2() {
    path.reset();
    path.moveTo(decodeX(0.0f), decodeY(0.25f));
    path.lineTo(decodeX(2.125f), decodeY(0.25f));
    path.curveTo(decodeAnchorX(2.125f, 3.0f), decodeAnchorY(0.25f, 0.0f),
        decodeAnchorX(2.75f, 0.0f), decodeAnchorY(0.875f, -3.0f), decodeX(2.75f), decodeY(0.875f));
    path.lineTo(decodeX(2.75f), decodeY(2.125f));
    path.curveTo(decodeAnchorX(2.75f, 0.0f), decodeAnchorY(2.125f, 3.0f),
        decodeAnchorX(2.125f, 3.0f), decodeAnchorY(2.75f, 0.0f), decodeX(2.125f), decodeY(2.75f));
    path.lineTo(decodeX(0.0f), decodeY(2.75f));
    path.lineTo(decodeX(0.0f), decodeY(0.25f));
    path.closePath();
    return path;
  }

  private Path2D decodePath3() {
    path.reset();
    path.moveTo(decodeX(0.85294116f), decodeY(2.639706f));
    path.lineTo(decodeX(0.85294116f), decodeY(2.639706f));
    path.closePath();
    return path;
  }

  private Path2D decodePath4() {
    path.reset();
    path.moveTo(decodeX(1.0f), decodeY(0.375f));
    path.lineTo(decodeX(2.0f), decodeY(0.375f));
    path.curveTo(decodeAnchorX(2.0f, 4.0f), decodeAnchorY(0.375f, 0.0f),
        decodeAnchorX(2.625f, 0.0f), decodeAnchorY(1.0f, -4.0f), decodeX(2.625f), decodeY(1.0f));
    path.lineTo(decodeX(2.625f), decodeY(2.0f));
    path.curveTo(decodeAnchorX(2.625f, 0.0f), decodeAnchorY(2.0f, 4.0f), decodeAnchorX(2.0f, 4.0f),
        decodeAnchorY(2.625f, 0.0f), decodeX(2.0f), decodeY(2.625f));
    path.lineTo(decodeX(1.0f), decodeY(2.625f));
    path.lineTo(decodeX(1.0f), decodeY(0.375f));
    path.closePath();
    return path;
  }

  private Path2D decodePath5() {
    path.reset();
    path.moveTo(decodeX(0.9995915f), decodeY(1.3616071f));
    path.lineTo(decodeX(2.0f), decodeY(0.8333333f));
    path.lineTo(decodeX(2.0f), decodeY(1.8571429f));
    path.lineTo(decodeX(0.9995915f), decodeY(1.3616071f));
    path.closePath();
    return path;
  }

  private Path2D decodePath6() {
    path.reset();
    path.moveTo(decodeX(1.00625f), decodeY(1.3526785f));
    path.lineTo(decodeX(2.0f), decodeY(0.8333333f));
    path.lineTo(decodeX(2.0f), decodeY(1.8571429f));
    path.lineTo(decodeX(1.00625f), decodeY(1.3526785f));
    path.closePath();
    return path;
  }

  private Path2D decodePath7() {
    path.reset();
    path.moveTo(decodeX(1.0117648f), decodeY(1.3616071f));
    path.lineTo(decodeX(2.0f), decodeY(0.8333333f));
    path.lineTo(decodeX(2.0f), decodeY(1.8571429f));
    path.lineTo(decodeX(1.0117648f), decodeY(1.3616071f));
    path.closePath();
    return path;
  }

  private Path2D decodePath8() {
    path.reset();
    path.moveTo(decodeX(1.0242647f), decodeY(1.3526785f));
    path.lineTo(decodeX(2.0f), decodeY(0.8333333f));
    path.lineTo(decodeX(2.0f), decodeY(1.8571429f));
    path.lineTo(decodeX(1.0242647f), decodeY(1.3526785f));
    path.closePath();
    return path;
  }


  private Paint decodeGradient1(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color2,
            decodeColor(color2, color3, 0.5f),
            color3});
  }

  private Paint decodeGradient2(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.171875f, 0.34375f, 0.4815341f, 0.6193182f, 0.8096591f, 1.0f},
        new Color[]{color5,
            decodeColor(color5, color6, 0.5f),
            color6,
            decodeColor(color6, color7, 0.5f),
            color7,
            decodeColor(color7, color8, 0.5f),
            color8});
  }

  private Paint decodeGradient3(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color10,
            decodeColor(color10, color11, 0.5f),
            color11});
  }

  private Paint decodeGradient4(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.12299465f, 0.44652405f, 0.5441176f, 0.64171124f, 0.8208556f, 1.0f},
        new Color[]{color12,
            decodeColor(color12, color13, 0.5f),
            color13,
            decodeColor(color13, color14, 0.5f),
            color14,
            decodeColor(color14, color15, 0.5f),
            color15});
  }

  private Paint decodeGradient5(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color16,
            decodeColor(color16, color17, 0.5f),
            color17});
  }

  private Paint decodeGradient6(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.12299465f, 0.44652405f, 0.5441176f, 0.64171124f, 0.81283426f,
            0.98395723f},
        new Color[]{color18,
            decodeColor(color18, color19, 0.5f),
            color19,
            decodeColor(color19, color20, 0.5f),
            color20,
            decodeColor(color20, color21, 0.5f),
            color21});
  }

  private Paint decodeGradient7(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color22,
            decodeColor(color22, color23, 0.5f),
            color23});
  }

  private Paint decodeGradient8(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.12299465f, 0.44652405f, 0.5441176f, 0.64171124f, 0.8208556f, 1.0f},
        new Color[]{color24,
            decodeColor(color24, color25, 0.5f),
            color25,
            decodeColor(color25, color26, 0.5f),
            color26,
            decodeColor(color26, color27, 0.5f),
            color27});
  }

  private Paint decodeGradient9(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((1.0f * w) + x, (0.5f * h) + y, (0.0f * w) + x, (0.5f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color28,
            decodeColor(color28, color29, 0.5f),
            color29});
  }


}
